SpaceX is about the launch a key component for future manned space exploration -- here's how to watch

On Monday at 12:45 am ET, SpaceX will launch its ninth Dragon capsule into space, stuffed with 3,800 lbs of cargo and science experiments. Instead of attempting to land its famed Falcon 9 rocket on a drone ship again, this time the company will attempt to land the rocket on ground.

Among the goodies that the rocket will be ferrying to space is something called an International Docking Adaptor (IDA). Right now, only Russian spacecrafts can dock with the ISS. All other spacecrafts need to be grappled by the ISS crew.

This IDA is a docking port that will open the door to a future herd of spacecrafts (including ones with actual humans on them), allowing them to dock automatically.

This is not the first time SpaceX tried to launch one of these IDAs into space. The first time, however, ended in disaster, when its Falcon 9 rocket broke apart three minutes after lift off in June 2015.

The supplies on this launch also include:

A small DNA sequencer (which astronaut Kate Rubins will use sequence DNA in space for the first time).

Living heart cells to test the effects of microgravity on the heart.

An experiment to observe the effects of microgravity on muscle loss and bone deterioration.

A phase-change material heat exchanger that could freeze and thaw to help astronauts regulate their temperature on board the ISS without consuming materials.

According to NASA officials, these supplies will allow astronauts to test technology that will help humans push the boundaries of space exploration.

If SpaceX successfully lands the rocket, it will be the fifth rocket the company has landed and retrieved. According to SpaceX CEO Elon Musk, one of these retrieved rockets could launch again as early as September. Reusing these rockets could cut the cost of spaceflight by as much as 30%, SpaceX says.